NGC 7793

NGC 7793
Hubble Space Telescope image of the small bulge and spiral arms of NGC 7793
Observation data (J2000 epoch)
ConstellationSculptor
Right ascension23h 57m 49.753s[1]
Declination−32° 35′ 27.71″[1]
Heliocentric radial velocity227 km/s[2]
Distance12.2 Mly (3.7 Mpc)[3]
Group or clusterSculptor Group[4]
Apparent magnitude (V)10.0[5]
Characteristics
TypeSA(s)d[6]
MassStellar: 3.2×109 M☉
Apparent size (V)9.3′ × 6.3′[5] (~30kly in diameter)
Other designations
NGC 7793, PGC 73049[7]

NGC 7793 is a flocculent spiral galaxy in the southern constellation of Sculptor. It was discovered in 1826 by Scottish astronomer James Dunlop.[8] The galaxy is located at a distance of 12.2[3] million light years and is receding with a heliocentric radial velocity of 227 km/s.[2] NGC 7793 is one of the five brightest galaxies within the Sculptor Group.[5][4]

The morphological class of NGC 7793 is SA(s)d,[6] indicating it is unbarred spiral galaxy (SA) with no inner ring structure (s) and the arms are loosely wound and disorganized (d). It is flocculent in appearance with a very small bulge and a star cluster at the nucleus.[5] The galactic disk is inclined at an angle of 53.7° to the line of sight from the Earth. The visible profile is elliptical in form with an angular size of 9.3′ × 6.3′[5] and a major axis aligned along a position angle of 99.3°.[6] There are two nearby dwarf galaxy companions.[9]

On March 25, 2008, a type II-P supernova designated SN 2008bk was discovered in NGC 7793.[10][6] At apparent magnitude 12.5, it became the 2nd brightest supernova of 2008.[11] The progenitor of this supernova was a red supergiant, observed only 547 days prior to the explosion.

NGC 7793 hosts the ultra-luminous X-ray pulsar (ULXP) referred to as NGC 7793 P13 (previously believed to harbor a black hole), which consists of a 0.42-second pulsar in a 64-day orbit with a 18-23 solar mass B9Ia companion star.[12]

  • Visual and infrared image of NGC 7793
    Visual and infrared image of NGC 7793

See also

  • NGC 300 - a similar spiral galaxy that is near NGC 7793
  • NGC 2403 - a similar spiral galaxy

References

  1. ^ a b Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  2. ^ a b Tully, R. Brent; et al. (August 3, 2016). "Cosmicflows-3". The Astronomical Journal. 152 (2): 50. arXiv:1605.01765. Bibcode:2016AJ....152...50T. doi:10.3847/0004-6256/152/2/50. S2CID 250737862.
  3. ^ a b Lianou, S.; et al. (November 2019). "Dust properties and star formation of approximately a thousand local galaxies". Astronomy & Astrophysics. 631: 19. arXiv:1906.02712. Bibcode:2019A&A...631A..38L. doi:10.1051/0004-6361/201834553. S2CID 174801441. A38.
  4. ^ a b I. D. Karachentsev; E. K. Grebel; M. E. Sharina; A. E. Dolphin; et al. (2003). "Distances to nearby galaxies in Sculptor". Astronomy and Astrophysics. 404 (1): 93–111. arXiv:astro-ph/0302045. Bibcode:2003A&A...404...93K. doi:10.1051/0004-6361:20030170. S2CID 54977869.
  5. ^ a b c d e König, Michael; Binnewies, Stefan (2017). The Cambridge Photographic Atlas of Galaxies. Cambridge University Press. p. 68. ISBN 9781108103091.
  6. ^ a b c d Crowther, Paul A. (January 2013). "On the association between core-collapse supernovae and H ii regions". Monthly Notices of the Royal Astronomical Society. 428 (3): 1927–1943. arXiv:1210.1126. Bibcode:2013MNRAS.428.1927C. doi:10.1093/mnras/sts145.
  7. ^ "NASA/IPAC Extragalactic Database". Results for NGC 7793. Retrieved 2006-11-21.
  8. ^ James, Dunlop (1828). "A Catalogue of Nebulae and Clusters of Stars in the Southern Hemisphere observed in New South Wales". Philosophical Transactions of the Royal Society. 118: 113–151. Bibcode:1828RSPT..118..113D. doi:10.1098/rstl.1828.0010. JSTOR 107841.
  9. ^ Mondal, Chayan; et al. (March 2021). "Tracing Young Star-forming Clumps in the Nearby Flocculent Spiral Galaxy NGC 7793 with UVIT Imaging". The Astrophysical Journal. 909 (2): 13. arXiv:2101.11314. Bibcode:2021ApJ...909..203M. doi:10.3847/1538-4357/abe0b4. S2CID 231718940. 203.
  10. ^ David Bishop. "Supernova 2008bk in NGC 7793". supernovae.net (International Supernovae Network). Archived from the original on 2011-09-27. Retrieved 2010-06-07.
  11. ^ David Bishop. "Bright Supernovae - 2008". supernovae.net (International Supernovae Network). Archived from the original on 2011-09-27. Retrieved 2010-06-07.
  12. ^ Israel, G.L. (September 2016). "Discovery of a 0.42-s pulsar in the ultraluminous X-ray source NGC 7793 P13". Monthly Notices of the Royal Astronomical Society: Letters. 466: L48–L52. arXiv:1609.06538. doi:10.1093/mnrasl/slw218.
Wikimedia Commons has media related to NGC 7793.

Read other articles:

The Conqueror (novel)

1931 historical novel by Georgette Heyer For other uses, see Conqueror (disambiguation) § Novels. This article does not cite any sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: The Conqueror novel – news · newspapers · books · scholar · JSTOR (March 2024) (Learn how and when to remove this template message) The Conqueror First editionAuthorGeorg...

 

 

The East

The EastGenreSitkomPemeran Lukman Sardi Sutan Simatupang Gista Putri Dwi Sasono Sahira Anjani Caesar Gunawan Tanta Ginting Andhry Budiarsha Aubry Beer Laura Theux Karina Salim Marlo Ernesto Mike Ethan Twindy Rarasati Negara asalIndonesiaProduksiProduser eksekutifNur Asfin MardiniProduserNucky RozandyLokasi produksiThe East Building, Kuningan Timur, Setiabudi, Jakarta SelatanPengaturan kameraMultikameraDurasi60 menitRumah produksiSeribu Layar SinemaDistributorNet Visi MediaIndika GroupRilis a...

 

 

العلاقات البوروندية الكمبودية

العلاقات البوروندية الكمبودية بوروندي كمبوديا   بوروندي   كمبوديا تعديل مصدري - تعديل   العلاقات البوروندية الكمبودية هي العلاقات الثنائية التي تجمع بين بوروندي وكمبوديا.[1][2][3][4][5] مقارنة بين البلدين هذه مقارنة عامة ومرجعية للدولتين: وجه ...

Gwen Stefani

American musician (born 1969) Gwen StefaniStefani performing with No Doubt in 2015BornGwen Renée Stefani (1969-10-03) October 3, 1969 (age 54)Fullerton, California, U.S.Other names Gwen Rossdale[1] Gwen Shelton[2] EducationCalifornia State University, FullertonOccupations Singer-songwriter record producer fashion designer actress Years active1986–presentOrganizationL.A.M.B.Spouses Gavin Rossdale ​ ​(m. 2002; div. 2015)...

 

 

Australian Indoor Championships 1973

Australian Indoor Championships 1973 Sport Tennis Data 4 novembre - 11 novembre Edizione 1a Superficie Cemento indoor Montepremi 50 000 $[1] Campioni Singolare Rod Laver Doppio Rod Laver / John Newcombe 1974 L'Australian Indoor Championships 1973 è stato un torneo di tennis giocato cemento indoor dell'Hordern Pavilion di Sydney in Australia. Il torneo fa parte del Commercial Union Assurance Grand Prix 1973. Si è giocato dal 4 all'11 novembre 1973. Indice 1 Campioni 1.1 Si...

 

 

Tranvia Monza-Barzanò-Oggiono

Tranvia Monza-Barzanò-OggionoCartolina di OggionoInizioMonza FineOggiono Inaugurazione1879-80 (Monza-Barzanò)1902 (Barzanò-Oggiono) Chiusura1917 GestoreMCMB Lunghezza31,5 km Tipotranvia interurbana Scartamento1.445 mm Trasporto pubblico Manuale La tranvia Monza-Barzanò-Oggiono era una linea tranviaria interurbana, esercita a vapore, che collegava la città di Monza alle aree collinari della Brianza orientale. Indice 1 Storia 2 Caratteristiche 2.1 Percorso 3 Materiale rotabile 3.1 Mat...

Wabah cacar 1978 di Britania Raya

Sayap timur University of Birmingham Medical School; sumber wabah Wabah cacar 1978 di Britania Raya mengakibatkan kematian Janet Parker, seorang fotografer medis Britania Raya, yang menjadi orang terakhir yang tercatat meninggal akibat cacar. Penyakit dan kematiannya, yang berkaitan dengan kematian dua orang lainnya, berujung pada Shooter Inquiry, sebuah penyelidikan resmi oleh para pakar yang diangkat pemerintah yang memuci perubahan radikal soal bagaimana patogen berbahaya dikaji di Britani...

 

 

Venosa

Venusia redirects here. For the genus of moth, see Venusia (moth). For other uses, see Venosa (disambiguation). You can help expand this article with text translated from the corresponding article in Italian. (January 2022) Click [show] for important translation instructions. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy...

 

 

Durrës Street

Street in Tirana, Albania Durrës Street Durrës Street (Albanian: Rruga e Durresit, formerly Rruga Kongresi i Përmetit) is a major street of Tirana, Albania. It is one of the most important street of western Tirana and runs west from the central Skanderbeg Square for several kilometres until it reaches the sea to the north of Durrës.[1] References ^ Jeroen van Marle, Alwyn Thomson, Tirana In Your Pocket, p.20 vte TiranaGeographyUrban Tirana 1 Tirana 2 Tirana 3 Tirana 4 Tirana 5 Tir...

أدريانا دورن

أدريانا دورن   معلومات شخصية الميلاد 30 ديسمبر 1986 (38 سنة)  ماناغوا  مواطنة نيكاراغوا  الطول 175 سنتيمتر  الحياة العملية المدرسة الأم جامعة ولاية بنسلفانيا  المهنة عارضة،  ومتسابقة ملكة الجمال  المواقع الموقع الموقع الرسمي  IMDB صفحتها على IMDB  تعديل مصد�...

 

 

Eduard Čech

Questa voce sull'argomento matematici è solo un abbozzo. Contribuisci a migliorarla secondo le convenzioni di Wikipedia. Segui i suggerimenti del progetto di riferimento. Eduard Čech Eduard Čech (Stračov, 29 giugno 1893 – Praga, 15 marzo 1960) è stato un matematico austro-ungarico, nato nella regione della Boemia, che al tempo faceva parte dell'Impero austro-ungarico, ed in seguito regione della Cecoslovacchia (oggi Repubblica Ceca). I suoi studi comprendono la geometria differen...

 

 

2021 Norwegian parliamentary election

2021 Norwegian parliamentary election ← 2017 13 September 2021 2025 → ← outgoing memberselected members →All 169 seats in the Storting85 seats are needed for a majority   First party Second party Third party   Leader Jonas Gahr Støre Erna Solberg Trygve Slagsvold Vedum Party Labour Conservative Centre Leader since 14 June 2014 9 May 2004 7 April 2014 Leader's seat Oslo Hordaland Hedmark Last election 49 seats, 27.4% 45 sea...

جزر مارشال

  جزر مارشال (بالإنجليزية: Marshall Islands)‏  جزر مارشالعلم جزر مارشال  جزر مارشالشعار جزر مارشال   الشعار الوطني(بالإنجليزية: Accomplishment through joint effort)‏  النشيد:  جزر مارشال للأبد  الأرض والسكان إحداثيات 9°49′N 169°17′E / 9.82°N 169.29°E / 9.82; 169.29   [1] أعلى قم�...

 

 

Katalis Adams

Katalis Adams Nama Nama IUPAC Platina(IV) oksida Nama lain platina dioksida, platini oksida Penanda Nomor CAS 1314-15-4 Y Model 3D (JSmol) Gambar interaktif 3DMet {{{3DMet}}} ChemSpider 306130 Y Nomor EC PubChem CID 345198 Nomor RTECS {{{value}}} UNII 9U12312Y2C Y CompTox Dashboard (EPA) DTXSID40904275 InChI InChI=1S/2O.Pt YKey: YKIOKAURTKXMSB-UHFFFAOYSA-N YInChI=1/2O.Pt/rO2Pt/c1-3-2Key: YKIOKAURTKXMSB-FVLSDXBIAR SMILES O=[Pt]=O Sifat Rumus kimia PtO2 ...

 

 

Waite Court

Period of the US Supreme Court from 1874 to 1888 Supreme Court of the United StatesWaite CourtChase Court ← → Fuller CourtChief Justice Morrison WaiteMarch 4, 1874 – March 23, 1888(14 years, 19 days)SeatOld Senate ChamberWashington, D.C.No. of positions9Waite Court decisions The Waite Court refers to the Supreme Court of the United States from 1874 to 1888, when Morrison Waite served as the seventh Chief Justice of the United States. Waite succeeded Salmon P. Chase a...

Oxford Casino

Casino hotel in Oxford, Maine Oxford Casino Location Oxford, Maine Address 777 Casino WayOpening dateJune 5, 2012No. of rooms107 (including 7 suites)Casino typeLand-basedOwnerChurchill Downs Inc.Coordinates44°06′55″N 70°26′45″W / 44.1152°N 70.4459°W / 44.1152; -70.4459Websiteoxfordcasino.com The Oxford Casino is a hotel and casino in Oxford, Maine, owned and operated by Churchill Downs Inc. It has 27,000 square feet (2,500 m2) of gaming space, with 970...

 

 

Richard Mór de Burgh, 1st Baron of Connaught

Anglo-Norman chieftain and noble (c.1180–1242/3) Richard Mór de Burgh1st Lord of ConnaughtThe inverted shield of Richard de Burgh from ‘Historia Anglorum’ (c.1250–59): British Library, Royal MS.14 CVII Historia Anglorum.Justiciar of IrelandIn office13 February 1228 – 16 June 1232Preceded byGeoffrey de MariscoSucceeded byHubert de Burgh, 1st Earl of Kent Personal detailsBornc. 1194Diedc. 1242SpouseEgidia de Lacy, Lady of ConnachtChildrenSir Richard de Burgh Walt...

 

 

Badan Pendidikan dan Pelatihan Pemeriksaan Keuangan Negara

Artikel ini perlu diwikifikasi agar memenuhi standar kualitas Wikipedia. Anda dapat memberikan bantuan berupa penambahan pranala dalam, atau dengan merapikan tata letak dari artikel ini. Untuk keterangan lebih lanjut, klik [tampil] di bagian kanan. Mengganti markah HTML dengan markah wiki bila dimungkinkan. Tambahkan pranala wiki. Bila dirasa perlu, buatlah pautan ke artikel wiki lainnya dengan cara menambahkan [[ dan ]] pada kata yang bersangkutan (lihat WP:LINK untuk keterangan lebih lanjut...

AK-103

AK103 AK103AK103種類 アサルトライフル製造国 ロシア設計・製造 設計：ミハイル・カラシニコフ製造：カラシニコフ・コンツェルン（旧：イズマッシュ社）仕様種別 アサルトライフル口径 7.62 mm銃身長 415 mm（AK103、AK203）[1][2]314 mm（AK104、AK204）[3][4]ライフリング 4条、ピッチ240 mm（AK103、AK104）[1][3]4条、ピッチ265 mm（AK203、AK204）[2] ...

 

 

Conflict continuum

Concept in social science Conflict resolution Nonviolence Arbitration Auction Conciliation Law Dispute resolution Rule of law Collaborative Mediation Party-directed Nonviolent Communication Pacifism Negotiation Speaking truth to power Workplace Conflict management Violence Communal violence Conflict escalation De-escalation Just war theory War studies International relations Appeasement Armistice Brinkmanship Ceasefire Diplomacy Deterrence Multilateralism Nuclear Nuclear warfare Nuclear black...